#!./miniperl -w
+#
+# configpm
+#
+# Copyright (C) 1994, 1995, 1996 1997, 1998, 1999, 2000, 2001,
+# 2002, 2003, 2004, 2005, 2006 Larry Wall and others.
+#
+#
+# Regenerate the files
+#
+# lib/Config.pm
+# lib/Config_heavy.pl
+# lib/Config.pod
+# lib/Cross.pm (optionally)
+#
+# from the contents of the static files
+#
+# Porting/Glossary
+# myconfig.SH
+#
+# and from the contents of the Configure-generated file
+#
+# config.sh
+#
+# It will only update Config.pm and Config_heavy.pl if the contents of
+# either file would be different. Note that *both* files are updated in
+# this case, since for example an extension makefile that has a dependency
+# on Config.pm should trigger even if only Config_heavy.pl has changed.
+
+sub usage { die <<EOF }
+usage: $0 [ options ] [ Config_file ] [ Glossary_file ]
+ --cross=PLATFORM cross-compile for a different platform
+ --no-glossary don't include Porting/Glossary in lib/Config.pod
+ --heavy=FILE alternative name for lib/Config_heavy.pl
+ Config_file alternative name for lib/Config.pm
+ Glossary_file alternative name for Porting/Glossary
+EOF
+
use strict;
use vars qw(%Config $Config_SH_expanded);
my %opts = (%Allowed_Opts, %given_opts);
for my $opt (grep {!exists $Allowed_Opts{$_}} keys %given_opts) {
- die "option '$opt' is not recognized";
+ warn "option '$opt' is not recognized";
+ usage;
}
@ARGV = grep {!/^--/} @ARGV;
if $Config_heavy eq $Config_PM;
}
-open CONFIG, ">$Config_PM" or die "Can't open $Config_PM: $!\n";
-open CONFIG_HEAVY, ">$Config_heavy" or die "Can't open $Config_heavy: $!\n";
+my $config_txt;
+my $heavy_txt;
-print CONFIG_HEAVY <<'ENDOFBEG';
+$heavy_txt .= <<'ENDOFBEG';
# This file was created by configpm when Perl was built. Any changes
# made to this file will be lost the next time perl is built.
my $myver = sprintf "%vd", $^V;
-printf CONFIG <<'ENDOFBEG', ($myver) x 3;
+$config_txt .= sprintf <<'ENDOFBEG', ($myver) x 3;
# This file was created by configpm when Perl was built. Any changes
# made to this file will be lost the next time perl is built.
$relocations_in_common++ if $Common{$_};
}
if ($relocations_in_common) {
- print CONFIG $relocation_code;
+ $config_txt .= $relocation_code;
} else {
- print CONFIG_HEAVY $relocation_code;
+ $heavy_txt .= $relocation_code;
}
}
-print CONFIG_HEAVY @non_v, "\n";
+$heavy_txt .= join('', @non_v) . "\n";
# copy config summary format from the myconfig.SH script
-print CONFIG_HEAVY "our \$summary = <<'!END!';\n";
+$heavy_txt .= "our \$summary = <<'!END!';\n";
open(MYCONFIG,"<myconfig.SH") || die "open myconfig.SH failed: $!";
1 while defined($_ = <MYCONFIG>) && !/^Summary of/;
-do { print CONFIG_HEAVY $_ } until !defined($_ = <MYCONFIG>) || /^\s*$/;
+do { $heavy_txt .= $_ } until !defined($_ = <MYCONFIG>) || /^\s*$/;
close(MYCONFIG);
-print CONFIG_HEAVY "\n!END!\n", <<'EOT';
+$heavy_txt .= "\n!END!\n" . <<'EOT';
my $summary_expanded;
sub myconfig {
$_ = <<'!END!';
EOT
-print CONFIG_HEAVY join('', sort @v_others), "!END!\n";
+$heavy_txt .= join('', sort @v_others) . "!END!\n";
# Only need the dynamic byteorder code in Config.pm if 'byteorder' is one of
# the precached keys
if ($Common{byteorder}) {
- print CONFIG $byteorder_code;
+ $config_txt .= $byteorder_code;
} else {
- print CONFIG_HEAVY $byteorder_code;
+ $heavy_txt .= $byteorder_code;
}
if (@need_relocation) {
-print CONFIG_HEAVY 'foreach my $what (qw(', join (' ', @need_relocation),
- ")) {\n", <<'EOT';
+$heavy_txt .= 'foreach my $what (qw(' . join (' ', @need_relocation) .
+ ")) {\n" . <<'EOT';
s<^($what=)(['"])(.*?)\2>
<$1 . $2 . relocate_inc($3) . $2 . "\n" .
'raw_' . $1 . $2 . $3 . $2>me;
# no need to emulate the "which separator for this platform" logic in perl.c -
# ':' will always be applicable
if ($need_relocation{otherlibdirs}) {
-print CONFIG_HEAVY << 'EOT';
+$heavy_txt .= << 'EOT';
s{^(otherlibdirs=)(['"])(.*?)\2}
{$1 . $2 . join ':', map {relocate_inc($_)} split ':', $3 . $2}me;
EOT
}
}
-print CONFIG_HEAVY <<'EOT';
+$heavy_txt .= <<'EOT';
s/(byteorder=)(['"]).*?\2/$1$2$Config::byteorder$2/m;
my $config_sh_len = length $_;
my $withlargefiles = fetch_string ({}, $prefix . "_uselargefiles");
if (defined $withlargefiles) {
$value =~ s/\Q$withlargefiles\E\b//;
- print CONFIG_HEAVY "${prefix}_nolargefiles='$value'\n";
+ $heavy_txt .= "${prefix}_nolargefiles='$value'\n";
}
}
$value = join(' ', @libswanted);
}
}
- print CONFIG_HEAVY "${prefix}_nolargefiles='$value'\n";
+ $heavy_txt .= "${prefix}_nolargefiles='$value'\n";
}
-print CONFIG_HEAVY "EOVIRTUAL\n";
+$heavy_txt .= "EOVIRTUAL\n";
-print CONFIG_HEAVY $fetch_string;
+$heavy_txt .= $fetch_string;
-print CONFIG <<'ENDOFEND';
+$config_txt .= <<'ENDOFEND';
sub FETCH {
my($self, $key) = @_;
}
ENDOFEND
-print CONFIG_HEAVY <<'ENDOFEND';
+$heavy_txt .= <<'ENDOFEND';
my $prevpos = 0;
sub NEXTKEY {
ENDOFEND
if ($seen_quotes{'"'}) {
-print CONFIG_HEAVY <<'ENDOFEND';
+$heavy_txt .= <<'ENDOFEND';
# Find out how the current key's quoted so we can skip to its end.
my $quote = substr($Config_SH_expanded,
index($Config_SH_expanded, "=", $prevpos)+1, 1);
ENDOFEND
} else {
# Just ' quotes, so it's much easier.
-print CONFIG_HEAVY <<'ENDOFEND';
+$heavy_txt .= <<'ENDOFEND';
my $pos = index($Config_SH_expanded, qq('\n), $prevpos) + 2;
ENDOFEND
}
-print CONFIG_HEAVY <<'ENDOFEND';
+$heavy_txt .= <<'ENDOFEND';
my $len = index($Config_SH_expanded, "=", $pos) - $pos;
$prevpos = $pos;
$len > 0 ? substr($Config_SH_expanded, $pos, $len) : undef;
return(index($Config_SH_expanded, "\n$_[1]='") != -1
ENDOFEND
if ($seen_quotes{'"'}) {
-print CONFIG_HEAVY <<'ENDOFEND';
+$heavy_txt .= <<'ENDOFEND';
or index($Config_SH_expanded, "\n$_[1]=\"") != -1
ENDOFEND
}
-print CONFIG_HEAVY <<'ENDOFEND';
+$heavy_txt .= <<'ENDOFEND';
);
}
ENDOFEND
if ($^O eq 'os2') {
- print CONFIG <<'ENDOFSET';
+ $config_txt .= <<'ENDOFSET';
my %preconfig;
if ($OS2::is_aout) {
my ($value, $v) = $Config_SH_expanded =~ m/^used_aout='(.*)'\s*$/m;
$dll = $1, last if /^PERL_DLL_BASE\s*=\s*(\S*)\s*$/;
}
}
- print CONFIG <<ENDOFSET if $dll;
+ $config_txt .= <<ENDOFSET if $dll;
\$preconfig{dll_name} = '$dll';
ENDOFSET
} else {
- print CONFIG <<'ENDOFSET';
+ $config_txt .= <<'ENDOFSET';
sub TIEHASH {
bless $_[1], $_[0];
}
# Sanity check needed to stop an infite loop if Config_heavy.pl fails to define
# &launcher for some reason (eg it got truncated)
-print CONFIG sprintf <<'ENDOFTIE', $fast_config;
+$config_txt .= sprintf <<'ENDOFTIE', $fast_config;
sub DESTROY { }
ENDOFTAIL
-close(CONFIG_HEAVY);
-close(CONFIG);
-close(GLOS);
+close(GLOS) if $Opts{glossary};
close(CONFIG_POD);
+print "written lib/Config.pod\n";
+
+my $orig_config_txt = "";
+my $orig_heavy_txt = "";
+{
+ local $/;
+ my $fh;
+ $orig_config_txt = <$fh> if open $fh, "<", $Config_PM;
+ $orig_heavy_txt = <$fh> if open $fh, "<", $Config_heavy;
+}
+
+if ($orig_config_txt ne $config_txt or $orig_heavy_txt ne $heavy_txt) {
+ open CONFIG, ">", $Config_PM or die "Can't open $Config_PM: $!\n";
+ open CONFIG_HEAVY, ">", $Config_heavy or die "Can't open $Config_heavy: $!\n";
+ print CONFIG $config_txt;
+ print CONFIG_HEAVY $heavy_txt;
+ close(CONFIG_HEAVY);
+ close(CONFIG);
+ print "updated $Config_PM\n";
+ print "updated $Config_heavy\n";
+}
+
# Now create Cross.pm if needed
if ($Opts{cross}) {
$cross =~ s/\*\*\*replace-marker\*\*\*/$Opts{cross}/g;
print CROSS $cross;
close CROSS;
+ print "written lib/Cross.pm\n";
unshift(@INC,"xlib/$Opts{cross}");
}